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Interfacing mid-range PIC MCUs with UNI/O bus-compatible serial EEPROMs

Posted: 04 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:PIC MCU? microcontroller? EEPROM? application note?

As embedded systems become smaller, a growing need exists to minimize I/O pin usage for communication between devices. Microchip has addressed this need by developing the UNI/O bus, a low-cost, easy-to-implement solution requiring only a single I/O pin for bidirectional communication.

UNI/O bus-compatible serial EEPROMs can be used to enhance any application facing restrictions on available I/O. Such restrictions can potentially stem from connectors, board space or from the master device itself.

This application note is intended to serve as a reference for interfacing Microchip's mid-range family of PIC MCUs with Microchip's UNI/O bus-compatible 11XXXXX family of serial EEPROM devices, with the aid of a hardware timer. The provided source code is written in assembly.

View the PDF document for more information.

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